1 Corinthians 9:10
Or saith he [it] altogether for our sakes? For our sakes, no doubt, [this] is written: that he that ploweth should plow in hope; and that he that thresheth in hope should be partaker of his hope.
Note 5 at 1Co 9:10: Paul was saying that the commentary just stated in 1Co 9:9 is actually written about ministers. It is right for ministers' needs to be met from the fruit of their labor.
Note 6 at 1Co 9:10: Paul wasn't really talking about plowing and threshing. He was saying that it is good and right for ministers to hope to receive financial benefit from their labors.